Der Spiegel: In interview, former Iraq weapons hunter David Kay trashes German intelligence BND over hyping Curveball's information:
Kay: The BND was convinced that his information was so valuable that they distributed over 100 reports on 'Curveball' to their allies. I stand by my criticism of the BND to this day: To not have checked up on the exile Iraqis in Germany who knew him, not to have made all the appropriate efforts to validate the source, is a level of irresponsibility that is awfully hard to imagine in a service like the BND. [...]
SPIEGEL: Are you saying that German intelligence knowingly deceived the United States about 'Curveball?' Within the BND, at least, it seems that many actually believed him.
Kay: It was mysterious to me. I’ve thought about it for a long time and I have an explanation. If there is an intelligence service which has had experience with defectors, then it is the BND. They had so many Soviet defectors. But exactly those people who specialize in defectors and how to deal with them -- the people from the clandestine or operative side -- had nothing to do with 'Curveball.' He was primarily run by people from the analytical and technology side of the BND who don’t know that the first thing you do when someone walks through the door is you find out who he is, who knows him, who his real name is and what his real story is. But also there was a desire to believe. Fabricators work best when there is a desire to believe.
SPIEGEL: When you were in Iraq, your team found out that 'Curveball’s' story had nothing to do with the truth. How did CIA leadership react to your findings?
Kay: With resistance and denial. It was an absolute refusal to face reality. I just kept on hearing, 'don’t stop now. Keep working. You must be wrong. You will find it. Keep looking.' [...]
SPIEGEL: But nothing was ever found…
Kay: No and my e-mails became less and less friendly. There was a war going on in Baghdad, the members of my team were risking their lives every day, and the Germans kept on refusing us access to the source. When we finally got permission, it was even worse.
SPIEGEL: How so?
Kay: I sent two of my best people over to Germany -- they were gone for a total of two weeks. But they were not allowed to interrogate him. They were allowed to provide some initial questions and then watch it all on video from another room. But they were not allowed to submit follow up questions that could be immediately asked, which is the very essence of an interrogation. They were mad and I was mad. Yet what they watched on video was enough to convince them that 'Curveball' was a fabricator. ...